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For the Inventor, By the Inventor

Ichinomiya, Japan

Naoki Sugiura

This inventor holds 15 USPTO granted patents and 3 published patent applications and 10 EPO patents. Top assignees: Mitsubishi Chemical Corporation, Mitsubishi Rayon Company, Limited. Active years: 1992-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Naoki Sugiura. Retrieved from https://idiyas.com/inventor/naoki-sugiura

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 15 

% Patents Active = 86.7

 

Average Co-Inventor Count = 3.0

ph-index = 4

Forward Citations = 30(Granted Patents)


Location History:

  • Ichinomiya, JP (2006)
  • Otake, JP (1992 - 2012)
  • Aichi, JP (2015 - 2018)
  • Tokyo, JP (2023)
  • Toyohashi, JP (2018 - 2024)

Company Filing History:

goldMedal8 out of 2,422 
 
Mitsubishi Chemical Corporation
 patents
silverMedal7 out of 1,357 
 
Mitsubishi Rayon Company, Limited
 patents

Years Active: 1992-2026

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15 patents (USPTO):Explore Patents
1. 12655261 - Sizing agent, sizing agent-adhered carbon fibers and method for producing same, aqueous dispersion of sizing agent, prepreg and method for producing same, and method for producing carbon fiber-reinforced composite material (2026-06-16),
2. 12162185 - Fiber-reinforced resin prepreg, molded article, and fiber-reinforced thermoplastic resin prepreg (2024-12-10),
3. 11970791 - Carbon fiber bundle and method of producing carbon fiber bundle (2024-04-30),
4. 11787913 - Sizing agent for carbon fibers, aqueous dispersion of sizing agent for carbon fibers, and sizing agent-adhered carbon fiber bundle (2023-10-17),
5. 10837127 - Carbon fiber bundle and method of producing carbon fiber bundle (2020-11-17),
6. 10087558 - Carbon fiber manufacturing method (2018-10-02),
7. 9873777 - Carbon fiber bundle and method of producing carbon fibers (2018-01-23),
8. 9862824 - Carbon fiber sizing agent, aqueous dispersion thereof, carbon fiber bundle applied with sizing agent, sheet-like article comprising carbon fiber bundle, and carbon fiber reinforced composite material (2018-01-09),
9. 8932711 - Oil agent composition for acrylic precursor fibers for carbon fibers, acrylic precursor fiber bundle for carbon fibers, and method for producing the same (2015-01-13),
10. 8221840 - Method for producing a carbon fiber bundle (2012-07-17),
11. 8012584 - High-performance pressure vessel and carbon fiber for pressure vessel (2011-09-06),
12. 7150913 - Sizing agent for carbon fiber, aqueous dispersion of the same, carbon fiber treated by sizing, sheet comprising the carbon fiber, and carbon fiber-reinforced composite material (2006-12-19),
13. 7135516 - Sizing agent for carbon fiber, method for sizing carbon fiber by said sizing agent, sized carbon fiber and knitted or woven fabric using said carbon fiber (2006-11-14),
14. 7094468 - Sizing agent for carbon fiber, aqueous dispersion thereof, carbon fiber treated by sizing sheet-form object comprising the carbon fiber, and carbon fiber-reinforced coposite material (2006-08-22),
15. 5124010 - Carbon fibers having modified surfaces and process for producing the same (1992-06-23),

Title: Naoki Sugiura: Innovator in Fiber-Reinforced Materials

Introduction

Naoki Sugiura is a prominent inventor based in Ichinomiya, Japan. He has made significant contributions to the field of materials science, particularly in the development of fiber-reinforced resin prepregs. With a total of 15 patents to his name, Sugiura's work has advanced the capabilities of composite materials in various applications.

Latest Patents

Sugiura's latest patents include innovations such as a fiber-reinforced resin prepreg and a molded article derived from this prepreg. The fiber-reinforced resin prepreg consists of a carbon fiber bundle and a matrix resin composition. Notably, the ipa value of the carbon fiber bundle, measured by an electrochemical method, is 0.14 μA/cm or more. Additionally, the impact strength of a film produced by solidifying the matrix resin composition under specific molding conditions is 12.0 kJ/m or greater. Another significant patent involves carbon fiber bundles that exhibit high knot strength, even with a larger single fiber fineness. These bundles possess a single fiber fineness of 0.8-2.5 dtex and a knot strength of 298 N/mm or greater. The method for producing these carbon fibers includes a heat treatment step in an oxidizing atmosphere at temperatures ranging from 220-300° C for 50-150 minutes.

Career Highlights

Throughout his career, Sugiura has worked with notable companies such as Mitsubishi Rayon Company, Limited and Mitsubishi Chemical Corporation. His experience in these organizations has allowed him to refine his expertise in materials development and innovation.

Collaborations

Sugiura has collaborated with esteemed colleagues, including Masahiro Hata and Takayuki Kiriyama. These partnerships have contributed to the advancement of his research and the successful development of new materials.

Conclusion

Naoki Sugiura's contributions to the field of fiber-reinforced materials have established him as a key figure in materials science. His innovative patents and collaborations reflect his commitment to advancing technology in this area.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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